js生成、删除表格方法

                document.getElementById("div_play1").innerHTML += text;

                document.getElementById("txtBianma").value = "";
                document.getElementById("txtNumber1").value = "";
                  document.getElementById("txtKCNumber1").value = "";
                document.getElementById("txtyuPrice1").value = "";
                document.getElementById("txtPrice1").value = "";


                document.getElementById("txtBei1").value = "";

}
}

        function insert(index) {
            var HTYPE = document.getElementById("DropDownList3").value;
            var PRODUCTNAME = document.getElementById("DropDownList2").value;
            var PRODUCTTYPE = document.getElementById("DropDownList1").value;
            var PRODUCTSBM = document.getElementById("txtNumber1").value;
            var PRODUCTSNUMBER = document.getElementById("txtBianma").value;

            var PROFUCTSKCNUMBER=document.getElementById("txtKCNumber1").value;
            var PRODUCTSPRICE = document.getElementById("txtyuPrice1").value;
            var PRODUCTSMONEY = document.getElementById("txtPrice1").value;
            var BEIZU=document.getElementById("txtBei1").value;

            var text = HTYPE + "," + PRODUCTNAME + "," + PRODUCTTYPE + "," + PRODUCTSBM + "," + PRODUCTSNUMBER + ","+PROFUCTSKCNUMBER+"," + PRODUCTSPRICE + "," + PRODUCTSMONEY+","+BEIZU;
            document.getElementById("listvalue").value += text + "@";
        }

        function deleteRow(index){
        var index = index.parentNode.parentNode.rowIndex;
        var tab = document.getElementById('tab');
        tab.deleteRow(index);
        }

function validate2() {

            var txtName1 = document.getElementById("DropDownList3").value;
            var txtGUIG1 = document.getElementById("txtGUIG1").value;
            var txtNumber1 = document.getElementById("txtNumber1").value;

            if (txtName1 == "" || txtName1.length == 0) {
                alert("物品名称不可以为空!");
                return false;
            } else if (txtGUIG1 == "" || txtGUIG1.length == 0) {
                alert("规格不能为空!");
                return false;
            } else if (txtNumber1 == "" || txtNumber1.length == 0) {
                alert("数量不能为空!");
                return false;
            } else {

return true;

}

return true;
        }

        //计算单条记录金额
        function SuanQian()
        {

          var money=document.getElementById("txtyuPrice1").value;
          var SL=document.getElementById("txtKCNumber1").value;

          var ZQ=money*SL;

          document.getElementById("txtPrice1").value=ZQ;

        }

</script>